package com.chang.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.chang.reggie.common.R;
import com.chang.reggie.entity.Employee;
import com.chang.reggie.service.Impl.EmployeeServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeServiceImpl employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //1、将页面提交的密码进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名来查数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回失败结果
        if(emp==null){
            return R.error("登录失败！");
        }

        //4.如果密码不正确返回登录失败
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败！");
        }

        //5.查看员工状态是否禁用
        if(emp.getStatus()==0){
            return R.error("账号已禁用！");
        }
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }


    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前员工登录的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功！");
    }

    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工，员工信息：{}",employee.toString());
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        /*employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        Long empId = (Long)request.getSession().getAttribute("employee");

        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);*/

        employeeService.save(employee);

        return R.success("新增员工成功");
    }

    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page={},pageSize={},name={}", page, pageSize, name);

        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(!StringUtils.isEmpty(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getCreateTime);

        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){

        log.info(employee.toString());
       /* Long empId = (Long)request.getSession().getAttribute("employee");
        employee.setUpdateUser(empId);
        employee.setUpdateTime(LocalDateTime.now());*/
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    @GetMapping("/{id}")
    public R<Employee> getEmpById(@PathVariable String id){
        log.info("根据id查询对象！");
        Employee emp = employeeService.getById(id);
        if (emp!=null){
            return R.success(emp);
        }
        return R.error("没有查询到该用户信息");
    }

}
